多潘立酮胃内滞留型缓释片的制备
Preparation of Domperidone Sustained-Release Floating Tablets
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摘要: 目的:研制多潘立酮胃内滞留型缓释片,建立HPLC法测定多潘立酮胃内滞留型缓释片有关物质的方法。方法:以羟丙甲纤维素和卡波姆为主要凝胶材料制备片剂,考察释放度和漂浮性;采用Hypersil ODS2柱,甲醇-5g/L的乙酸铵溶液-三乙胺为流动相,流速为1ml/min,检测波长为285nm。结果:多潘立酮胃内滞留型缓释片具有较好的漂浮和缓释效果。多潘立酮的最低检测浓度为23.76ng/ml,有关物质可检出杂质4个。结论:本研究制备的多潘立酮胃内滞留型缓释片具有起漂时间快、缓释的特点;有关物质检查方法简单、快速、结果准确。Abstract: AIM:To prepare domperidone sustained-release floating tablets and establish a method for isolation and determination of related substances. METHOD:The tablets were prepared by the use of HPMC and Carbopol as gel matrix. In vitro release rate and floating